<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
  <meta charset="UTF-8">
  <title>hello</title>
</head>
<body>
  <h1>
    黑马欢迎您！<span th:text="${user}"></span>！
  </h1>

  <h2 th:text="${msg.toUpperCase().substring(5).toLowerCase()}"></h2>

  <ul>
    <li th:each="u : ${users}">
      <span th:text="${u}"></span>
    </li>
  </ul>
</body>
</html>